Stinging nettle redirects here. For the Australian plant, see Urtica incisa. For other plants that sting, see Stinging plant Plants with stinging hairs. Urtica dioica, often known as common nettle, stinging nettle (although not all plants of this species sting) or nettle leaf, or just a nettle or stinger, is a herbaceous perennial flowering plant in the family Urticaceae. Originally native to Europe, much of temperate Asia and western North Africa, it is now found worldwide, including New Zealand and North America. The species is divided into six subspecies, five of which have many hollow stinging hairs called trichomes on the leaves and stems, which act like hypodermic needles, injecting histamine and other chemicals that produce a stinging sensation upon contact (contact urticaria, a form or contact dermatitis). The plant has a long history of use as a source for traditional medicine, food, tea, and textile raw material in ancient societies.
It is a perennial herbaceous plant, with elliptic, obtuse leaves. It grows as a vine or creeper, doing well in moist, neutral soil. The most striking feature about this plant is the color of its flowers, a vivid deep blue; solitary, with light yellow markings. They are about 4 cm (1.6 in) long by 3 cm (1.2 in) wide. Some varieties yield white flowers. The fruits are 5 - 7 cm (2.0 - 2.8 in) long, flat pods with six to ten seeds in each pod. They are edible when tender. It is grown as an ornamental plant and as a revegetation species (e.g., in coal mines in Australia), requiring little care when cultivated. As a legume, its roots form a symbiotic association with soil bacteria known as rhizobia, which transform atmospheric N2 into a plant-usable form (a process called nitrogen fixing), therefore, this plant is also used to improve soil quality through the decomposition of nitrogen rich plant material.
Rosa Ã?? centifolia (lit. hundred leaved/petaled rose; syn. R. gallica var. centifolia (L.) Regel), the Provence rose or cabbage rose or Rose de Mai is a hybrid rose developed by Dutch rose breeders in the period between the 17th century and the 19th century, possibly earlier. Its parentage includes Rosa damascena, but it may be a complex hybrid; its exact hereditary history is not well documented or fully investigated, but it now appears that this is not the hundred-leaved (centifolia) rose mentioned by Theophrastus and Pliny: no unmistakable reference can be traced earlier than about 1580. The original plant was sterile, but a sport with single flowers appeared in 1769, from which various cultivars known as centifolia roses were developed, many of which are further hybrids. Other cultivars have appeared as further sports from these roses. Rosa centifolia Muscosa is a sport with a thick covering of resinous hairs on the flower buds, from which most (but not all) moss roses are derived. Dwarf or miniature sports have been known for almost as long as the larger forms, including a miniature moss ross Moss de Meaux
Matricaria chamomilla (synonym: Matricaria recutita), commonly known as chamomile (also spelled camomile), Italian camomilla, German chamomile, Hungarian chamomile (kamilla), wild chamomile or scented mayweed, is an annual plant of the composite family Asteraceae. M. chamomilla is the most popular source of the herbal product chamomile, although other species are also used as chamomile.
Citronella grass (Cymbopogon nardus and Cymbopogon winterianus) grow to about 2 m (6.6 ft) and have magenta-colored base stems. These species are used for the production of citronella oil, which is used in soaps, as an insect repellent (especially mosquitoes) in insect sprays and candles, and in aromatherapy. The principal chemical constituents of citronella, geraniol and citronellol, are antiseptics, hence their use in household disinfectants and soaps. Besides oil production, citronella grass is also used for culinary purposes, as a flavoring. East Indian lemongrass (Cymbopogon flexuosus), also called Cochin grass or Malabar grass, is native to Cambodia, Vietnam, Laos, India, Sri Lanka, Burma, and Thailand, while West Indian lemongrass (Cymbopogon citratus) is native to maritime Southeast Asia. While both can be used interchangeably, C. citratus is more suitable for cooking. In India, C. citratus is used both as a medical herb and in perfumes. C. citratus is consumed as a tea for anxiety in Brazilian folk medicine, but a study in humans found no effect. The tea caused a recurrence of contact dermatitis in one case.
M. oleifera is a fast-growing, deciduous tree that can reach a height of 10 - 12 m (32 - 40 ft) and trunk diameter of 45 cm (1.5 ft). The bark has a whitish-grey colour and is surrounded by thick cork. Young shoots have purplish or greenish-white, hairy bark. The tree has an open crown of drooping, fragile branches and the leaves build up a feathery foliage of tripinnate leaves. The flowers are fragrant and hermaphroditic, surrounded by five unequal, thinly veined, yellowish-white petals. The flowers are about 1.0 - 1.5 cm (1/2) long and 2.0 cm (3/4) broad. They grow on slender, hairy stalks in spreading or drooping flower clusters which have a length of 10 - 25 cm. Flowering begins within the first six months after planting. In seasonally cool regions, flowering only occurs once a year between April and June. In more constant seasonal temperatures and with constant rainfall, flowering can happen twice or even all year-round. The fruit is a hanging, three-sided brown capsule of 20â??45 cm size which holds dark brown, globular seeds with a diameter around 1 cm. The seeds have three whitish papery wings and are dispersed by wind and water. In cultivation, it is often cut back annually to 1 - 2 m (3 - 6 ft) and allowed to regrow so the pods and leaves remain within arm's reach.
Ocimum tenuiflorum (synonym Ocimum sanctum), commonly known as holy basil or tulsi, is an aromatic perennial plant in the family Lamiaceae. It is native to the Indian subcontinent and widespread as a cultivated plant throughout the Southeast Asian tropics. Tulsi is cultivated for religious and traditional medicine purposes, and also for its essential oil. It is widely used as a herbal tea, commonly used in Ayurveda, and has a place within the Vaishnava tradition of Hinduism, in which devotees perform worship involving holy basil plants or leave
Peppermint (Mentha piperita, also known as Mentha balsamea Wild) is a hybrid mint, a cross between water mint and spearmint. Indigenous to Europe and the Middle East, the plant is now widely spread and cultivated in many regions of the world. It is occasionally found in the wild with its parent species.
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Senna Plant Benefits For Health: As stated above, senna possesses medicinal value which can provide various health benefits given below. 1. Senna For Constipation: Being a laxative, senna is effective in relieving constipation. It has been approved by the US FDA as a non prescription drug to treat constipation. Senna stimulates the muscles of the colon to push fecal matter through more quickly. Senna leaf acts on the intestinal walls to cause contractions that lead to bowel movements. It softens stool by enabling the colon to absorb water. It can effectively cure even the most severe cases of constipation. The glycosides in it help transport electrolytes, causing bowel movements within 6 to 12 hours of its intake. Senna can be bought as an over the counter (OTC) medication for adults and children above 2 years of age. 2. Great Colon Cleanser: Senna has been regarded as a â??cleansing herbâ?? due to its laxative effects. Senna leaf is used in traditional Chinese medicine to clear away the heat accumulated in the large intestine, helping the body get rid of the stagnant food accumulated in the stomach. Today, it is widely used in cleansing the colon before colonoscopy and other types of colon surgery. 3. Treatment of Hemorrhoids: Senna has been found to be effective in the treatment of anal lacerations and hemorrhoids as it helps reduce swelling and facilitates quick healing. Moreover, since it promotes soft stools, it helps cause easy defecation in pathological conditions like anal fissure. This is due to the fact that after oral ingestion, the compounds in senna get absorbed into the intestinal tract, resulting in the separation of non-sugar parts in the colon. These non-sugar components increase the peristaltic movements by irritating and stimulating the intestinal tract. In this way, it speeds up the passage of stools through the intestinal tract. 4. Treatment of Intestinal Worms: The laxative properties of senna have been found to be useful in the treatment of worms in the stomach and colon.  Senna Medicinal Plant: Nutritional Value: The nutritional value of this herb has been explained in the table below. As evident from the table, it is devoid of calories and fat but a rich source of vitamin B